The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1988
Filed:
Oct. 13, 1987
Leonard W Elias, Highland, MI (US);
Other;
Abstract
An automatic battery watering device includes a housing mounted in the battery cell opening. The housing has a chamber for receiving pressurized water, an internal valve opening for passing the water into the cell, a valve pin mounted in the valve opening, a float that is mounted in the battery electrolyte and connected to the lower end of the pin so as to rise and fall in response to a change in the liquid level in the cell, and a pair of internally mounted diaphragms which center and support the pin and float. The pin has a valve member for blocking the internal valve opening when the float is at an appropriate level. When the float is lowered after a drop in the level of the electrolyte, the internal valve member opens so water can flow into the battery to replenish the liquid level. The housing passes gas from the battery to the atmosphere along a path independent of the water passage.